Very cool John! He's spent plenty of time playin' behind the vocals-- you can tell --- 'cuz he does a decent job of it ( not to mention his tone & single note lines ). I've played harp behind vocals alot 'cuz I spent years playin' harp/keyboards in a duo, and had to hold the backline for the guitar many times. The trick, of course, is to not play too much-- which can be tough if you've had a couple beers. That jam sounds like it was alotta fun.